题干
When I walked past the park, I saw some old people __________ Chinese Taiji.
A：does
B：did
C：doing
D：are doing
答案(点此获取答案解析）
C
When I walked past the park, I saw some old people __________ Chinese Taiji.
A：does
B：did
C：doing
D：are doing
米，依据此图，该校一年级同学叶明，早晨面向太阳走在上学的路上，请想一想，此时叶明左手面是什么方向（ ）